CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 50

• Manufacturer Part Number: CDB42L55
• Description: Eval Bd Ultra Low Power Stereo Codec
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42L55

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42L55
• Primary Attributes: 2 Stereo Analog Inputs, Stereo Line and Headphone Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: GUI, USB, RS232, I2C Interfaces, USB or External or Battery Power Supply
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1506; CDB-42L55

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6.12
6.12.1 ADCx Volume
6.13
6.13.1 Power Down DSP
6.13.2 HP/Line De-Emphasis
6.13.3 Playback Channels B=A
ADCxATT7
PDN_DSP
7
7
ADCx Attenuator Control:
ADCAATT (Address 0Dh) & ADCBATT (Address 0Eh)
Playback Control 1 (Address 0Fh)
Sets the volume of the ADC signal.
Configures the power state of the DSP Engine.
Configures a 15μs/50μs digital de-emphasis filter response on the headphone and line outputs
Configures independent or ganged volume control of all playback channels.
Note:
ing channel A in a ganged scenario, the MUTEB must also be enabled. Muting channel A without muting
channel B in a ganged scenario may cause clipping on channel B.
ADCxATT[7:0]
0111 1111
...
0000 0000
1111 1111
1111 1110
...
1010 0000
...
1000 0000
Step Size:
PDNDSP
0
1
DEEMPH
0
1
PLYBCKB=A
0
1
ADCxATT6
DEEMPH
This function does not affect the AMIXBMUTE, PMIXBMUTE or MSTBMUTE control. When mut-
6
6
Volume
0 dB
...
0 dB
-1.0 dB
-2.0 dB
...
-96.0 dB
...
-96.0 dB
1.0 dB
DSP Status
Powered Up
Powered Down
De-Emphasis Status
Diabled
Enabled
Single Volume Control for all Playback Channels
Disabled; Independent channel control.
Enabled; Ganged channel control. Channel A volume control controls channel B volume.
ADCxATT5
Reserved
5
5
PLYBCKB=A
ADCxATT4
4
4
DSP Engine Controls/Blocks
AMIXxMUTE
AMIXxVOL[6:0]
PMIXxMUTE
PMIXxVOL[6:0]
Beep Generator, Tone Control, De-Emphasis
INV_PCMB
ADCxATT3
(“ADC Mixer Channel x Mute” on page
(“PCM Mixer Channel x Mute” on page
3
3
(“ADC Mixer Channel x Volume” on page
(“PCM Mixer Channel x Volume” on page
INV_PCMA
ADCxATT2
2
2
MSTBMUTE
ADCxATT1
1
1
51)
52)
51)
52)
CS42L55
MSTAMUTE
ADCxATT0
.
DS773F1
0
0